Handle switch



July 21, 1931. ss 1,815,041

HANDLE SWITCH File d Nov. 4, 1927 [NVENTOR Juddson E. Barrass BY gATTORNEY 85 the switch;

Patented July 21 1931 UNITED- STATES.

PATENT OFFICE I Johnson E. mimss. or umonrown, onIo, Assmnoa are THEHOOVER COMPANY, a conronarron or OHIO HANDLE SWITCH Application filedNovember 4, 1927. Serial No. 230,969. I

This invention relates to handle switches, and particularly to switchesfor electric suction cleaners, electric floor polishers and similarelectrically operated machines, that j are propelled by means-of ahandle. It has The princlpal objects of the invention are Y to provide ahandle for hand-propelled devices which is constructed and arran ed in aparticular manner so that the machine may e operated with the leastamount of effort and fatigue; to provide an operating handle having acontrolling switch arranged in close and convenient proximity to thegrip portion of the handle; to rovide a construction whereby the controing switch is conveniently mounted for removal so that the originalassemblage is simple and convenient, and

to provide an improved switch structure for use in connection with suchpropelling handle. I Other and additional objects of the invention willbecome apparent .on reading the so specification, and om inspection 0the drawings, in which;'

Figure 1 shows the invention in perspective' Fig. 2 is a fragmentaryside elevation of Fig. 3 is a side elevation of the switch frame shownin Fig. 2;

Fig..4is a fragmentary side elevation of a modified form of switch;

frame shown in Fig. 3;.and

Fig. 6 is an end elevationof the switch frame shown in Fig.v 4. v

In the drawings a tubular handle member 46 10 is shown, which isappropriately securedat its lower end to a too to be pro elled. A

curved handle grip member 11 o the type ordinarily referred to as apisto rip, forms a convenient part which may be 'eld in the hand so thatwhen the handle isin the nor- Fig. 5 is an end le'vation of. the switch:Switch- Each of these ears has a hole 22 mal position -for operatingthe machine the hand of the operator is in a normal and naturalposition. By .employing a handle grip'member, as stated, there is muchless fatigue from the operation of the machine,

and the machine in general, is easier to handle.

One end of the grip portion 11 is slightly reduced in diameter at 12 inorder that it may enter the tubular handle portion 10. The tubularhandle and,handle grip portion are held in proper relation by means ofscrews or other appropriate fastening mem-- bersinserted in the holes 13which .are so located in the handle portion and grip portion that whenthese parts are assembled they are in alinement and permit the entry ofsecuring means.

On the end face iof the reduced portion '12- of the gripthereE areprovided holes for the reception of s rews 14, only one of which isshown, but the other is diametrically opposite the one illustrated.These screws are provided for the purpose of holding a switch assemblagein proper relation to the grip portion 11. In the tubular portion 10 ofthe handle'there is provided a slot 15 to receive the operating triggerof the electric switch which is secured to the grip portion 11 when thegrip portion and the tubular handle portion are assembled inproperrelation.

The electric swltch comprises a main frame portion20 which isformed of afiat sheet bent over upon itself as shown in Fig.

5 in order that the requisite stiffness may be obtained and yet providea portion which may be turned outwardly at right angles to form cars 21for mounting the formed therein through which screws 14 are inserted forsecuring the switch to the at one endv a distance to permit the bendingof the divided portions which are turned out at right angles to .providethe mountin ears 21. Portions of the frame are struc out inorde'r toform studs 23 on which the contact yoke 24 is mounted.

trigger there is At theouter end of main switch frame there are securedinsulating blocks on which are mounted the switch terminals 26, one ofwhich is not shown, and extending from the switch terminals 26 there aremounted contact members 27.

U-shaped slot 31 in which the T head of the operating plunger 32 rides.On the stem portion of plunger 32 there is mounted a compression'sprin33, one end of which abuts the T head 0 the plunger while the .throughwhich the stem other end abuts the cross member of the contact yoke 24around an openin therein 32 freely slides.

The contact yoke 24 is provided at its lower end with openings adaptedto be mounted on the studs 23 which also function as limiting stops forthe oscillating operating trigger 28 by contacting the ends ofarcuateslots 30.

' tention to the fact that the studs or limiting The general method ofoperation of an electrical switch of the present type being well'knownto those skilled in the art, it

believed to be unnecessary to give a detailed description thereof otherthan to. call atlugs 23 serve a double function in that they support theoscillating contact yoke 24 and also serve, in cooperation with thearcuate slots 30, to limit. the movement of the 'operating trigger 28. a

In Figs. 4 and 6-there is shown a modification of the switchconstruction wherein,

when the main frame-20 is folded, it is not folded tight against itself,but is formed ciable s ace left between the two side mem m a substantialU-shape with an apprehis construction just described is useduinconjunction with an operating leg 40. thereof 1s adapted to extend downinto the space between the legs or sides of' .the U-shaped main frame inorder that the travel of the plunger may be guided.

In this modification of the structure the.

main frame has a'portion on each side 41 which is. cut to an arcuateshape and at the ends of which are formed abutments 42, members 43 ofthe plunger head ride on these arcuately cut portions and, at the end oftheir travel in either direction, are

limited by-the stops 42. The studs 23 are portion 0 plunger not providedin this modified structureas the contact yoke is directl mounted on thepivot'pin 29. v The operation of this swltch I IS thesa'me as the onepreviously described. While the main frame portion 20 of the switchconstruction has been mentioned as comprising a single piece folded uponitself,

- it will of course be understood that it might readily be constructedof two separate pieces .of metal secured to ether by welding, rivetingor by any ot er appropriate means. o

In connection with a ropelling handle suchas has been describe whereinthere is employed. a separate handle grip member 80 secured thereto, aswitch having a main frame construction substantially as that describedhas a number of features which are very advantageous. By providing arigid main frame having the mounting at one-s5 end, it is possible tosecure the main frame to the face of the grip portion, as by screws 14,which feature, in conjunction with other conveniences and advantages,makes such a construction valuable as regards thematter of assembly.

.The switch maybe assembled as a unit and, with a conductor cordattached thereto,

, may bemaintained as a unit for final assemblage or, the switch may beattached to the grip member ll'by screws 14 and this assemblage held asa-unit for final assemblage into the handle portion 10.

7 It has been found that the matter of uni assemblages is very importantin assembling complete machines, and that there is every advantage to begained by having various parts of a machine assembled into assemblyunits whereby the final as'semblage'requires only the bringing toether-of several subassemblages, rather-t an a detailed assemblage ofthe machine from its .various co'm ponent parts.

Changes may be made in the form, construction and arrangement of theparts :all such rihargels as. fairly fall within the t l 'n l l'plungerwhich has a head 'in the form of a fi qgf o e 0 owl g 0 ms cross'rather'than a T asdescribed in coneji nection with Fig. 2, and in'which'afou'rth claim i 1. A handle for hand propelled tools com-'prising a main tubular portion, a grip portion and a circuit-makmgdevice mounted on the base ofthe grip portion and housed in thejtubularportion.

2. A tool-propelling handle comprising a grip portion, a circuit, makingdevice mounted on the base of the grip and extend ing,therefrom,--a maintubular handle por-' tion. to receive the .circuit making device, andmeans for securing the main handleportion and grip portion to ether. 3.A tool-propelling hand e comprising a main handle member and a gripmember, y

an electric switch secured atone end to the base of the grip portion,the switch having an operating lever, an. end of the main handle memberbeing made-tubular and having a relatively long narrow slot to receivethe switch-operating lever, the handle-grip switch assemblage beingmountable in the 7 main handle member as a unit. a

4. The combination of a handle comprist lo ing a tubular portion, and agrip portion having apart thereof which telescopes with said tubularportion, of an electric switch having an operating lever mounted on theend of said grip portion and received in the tubular portion when saidend of said grip portion is telescoped therein, and means for securingthe grip to the tubular portion, said tubular portion having a slot toreceive the operating lever of said switch, V 5. In a suction sweeper, ahandle comprising a tubular portion and a grip porblOIl detachablyconnected to said tubular portion, a reduced portion on said gripportion received in said tubular portion, an electric switch havin anoperating lever mounted on the end 0 said reduced portion and arrangedin said tubular portion, said latter portion having a slot to receivethe. switch lever, and means for securing the so grip and tubularportions together.

6. The combination of a handle comprising a tubular portion having aslot and a grip portion having a part thereof which telescopes with saidtubular portion, of an electric switch comprising a supporting framemounted on said rip portion and an operating lever carried t ereby at adistance from said grip portion, characterized by the fact that saidswitch is housed within said 40 handle with the lever extendingtherethrough at said slot and movable in the direction of the lengththereof.

Signed at Uniontown, in the county of Stark, and State of Ohio, this24th day of October, A. D. 1927.

JUDDSON E. BARRASS.

